JUST HELP YOURSELF IF YOU’D LIKE SOMETHING TO EAT. YOU ……… FIRST.A. MU...

TÀI LIỆU K12 - HKII- KT 45''''- LAN3- CO DAP AN

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Câu 13: Just help yourself if you’d like something to eat. You ……… first.

A. mustn’t tell B. may walk C. needn’t ask D. must explain